Multi-point interrogation of FBG sensors using cascaded flexible wavelength-division Sagnac loop filters

Optics Express

Volumn 14, Issue 19, 2006, Pages 8546-8551

  Kim, Chang Seok ^a   Lee, Tae Ho ^a   Yu, Yun Sik ^b   Han, Young Geun ^c   Lee, Sang Bae ^c   Jeong, Myung Yung ^a  

^a Pusan National University   (South Korea)

^b Dong Eui University   (South Korea)

^c Korea Institute of Science and Technology   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

DEMODULATION; FIBER BRAGG GRATINGS; OPTICAL PROPERTIES; OPTICAL SENSORS; POLARIZATION; SIGNAL PROCESSING;

FIBER BRAGG GRATING SENSORS; MULTI POINT INTERROGATION; SAGNAC LOOP FILTERS; SENSING SIGNALS;

OPTICAL FILTERS;

EID: 33748941093     PISSN: 10944087     EISSN: 10944087     Source Type: Journal    
DOI: 10.1364/OE.14.008546     Document Type: Article

References (12)

1. B. Lee, "Review of the present status of optical fiber sensors," Opt. Fiber Technol. 9, 57-79 (2003).
2. A. D. Kersey, T. A. Berkoff, and W. W. Morey, "Multiplexed fiber Bragg grating strain-sensor system with a fiber Fabry-Perot wavelength filter," Opt. Lett.,18, 33-39 (1993).
3. M. A. Davis and A. D. Kersey, "All-fiber Bragg grating strain sensor demodulation technique using a wavelength division coupler," Electron. Lett. 30, 75-77 (1994).
4. R. W. Fallon, L. Zhang, L. A. Everall, J. A. R. Williams, and I. Bennion, "All-fibre optical sensing system: Bragg grating sensor interrogated by a long-period grating," Meas. Sci. and Technol. 9, 1969-1973 (1998).
5. S. Chung, J. Kim, B. A. Yu, B. Lee, "A fiber Bragg grating sensor demodulation technique using a polarization maintainging fiber loop mirror," IEEE Photon. Tech. Lett. 13, 1343-1345 (2001).
6. Y. G. Han, S. B. Lee, C. S. Kim, J. U. Kang, U. C. Paek, and Y. Chung, "Simultaneously measurement of temperature and strain using dual long-period fiber gratings with controlled temperature and strain sensitivities," Opt. Express 11, 476-481 (2003).
7. W. Shin, S. W. Han, C. S. Park, and K. Oh, "All fiber optical inter-band router for broadband wavelength division multiplexing," Opt. Express 12, 1815-1822 (2004).
8. C. S. Kim and J. U. Kang, "Multi-wavelength switching of Raman fiber ring laser incorporating composite polarization-maintaining fiber Lyot-Sagnac filter," Appl. Opt. 43, 3151-3157 (2004).
9. D. H. Kim and J. U. Kang, "Sagnac loop interferometer based on polarization maintaining photonic crystal fiber with reduced temperature sensitivity," Opt. Express 12, 4490-4495 (2004).
10. X. Yang, C.-L. Zhao, Q. Peng, X. Zhou, and C. Lu, "FBG sensor interrogation with high temperature insensitivity by using a HiBi-PCF Sagnac loop filter," Opt. Commun., 250, 63-68 (2005).
11. G. Chen and J. U. Kang, "Frequency discriminator based on ring-assisted fiber Sagnac filter," IEEE Photon. Tech. Lett. 17, 109-111 (2005).
12. and J. U. Kang, "Multi-wavelength switching of Raman fiber ring laser incorporating composite polarization-maintaining fiber Lyot-Sagnac filter," Appl. Opt. 43, 3151-3157 (2004).